I met this man several weeks ago; we are just acquaintances. He is a smiley and friendly person and confident, but he has changed towards me. He becomes quiet and self conscious and fidgets with things. I do have feelings for him and have flirted slightly and he responds. He makes a lot of eye contact and hovers nearby. He used to smile at me and talk easily, but now he looks extremely serous and agitated, He attempts to talk to me one minute but then seems to ignore m the next. I thought he was interested but sometimes I feel ignored . He will blank me but then I notice him glancing at me a lot. He always stares me in the face and tries to make eye contact but I get embarrassed. I do not want to appear overly keen. Also there are always other people around. He seems nervous and that makes me even more nervous. Sometimes I think he wants to make a move but then he backs off. This has gone on for weeks and is getting to me. He shows interest one minute then acts aloof the next. I want to start a conversation with him but maybe he hates me? I don't know. What is wrong with him?